A record of transactions for the month of May was as follows Purchases (units cost per unit) Sales May 1 400 @ 510.40 -34,160 May 3 200 units 0 300 @ 510.60 $8.480 12 900 units 22 700 510.80 -37.560 25 400 units Assuming that perpetual inventory records are kept in dollars determine the cost of goods sold using FIFO. (Show your calculations below. The more detail you show the more likely you are 10 earn partial credit)